84254476639 has 8 divisors (see below), whose sum is σ = 85166639712. Its totient is φ = 83343842400.

The previous prime is 84254476637. The next prime is 84254476667. The reversal of 84254476639 is 93667445248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84254476639 - 2¹ = 84254476637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84254476637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271219 + ... + 492004.

It is an arithmetic number, because the mean of its divisors is an integer number (10645829964).

Almost surely, 2^84254476639 is an apocalyptic number.

84254476639 is a deficient number, since it is larger than the sum of its proper divisors (912163073).

84254476639 is a wasteful number, since it uses less digits than its factorization.

84254476639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764417.

The product of its digits is 34836480, while the sum is 58.

The spelling of 84254476639 in words is "eighty-four billion, two hundred fifty-four million, four hundred seventy-six thousand, six hundred thirty-nine".